Drag each description to the correct mining type.

1. Uses heavy machinery to extract large amounts of material from the earth in open pits.

2. Involves digging tunnels deep into the earth to extract valuable minerals.
3. Involves removing minerals and metals from the ocean floor.

Options:
- Open-pit mining
- Underground mining
- Deep sea mining

Correct Answers:
1. Open-pit mining
2. Underground mining
3. Deep sea mining